Specialized knife



FIg. 1 is a first side view of a design for a specialized knife;

FIG. 2 is a second side view showing the side opposite said first sidethereof;

FIG. 3 is an end view from the left side of FIG. 1;

FIG. 4 is an end view from the right side of FIG. 1;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The ornamental design for a specialized knife, as shown and described.